Energi: Perbedaan antara revisi

* [[Richard Feynman|Feynman, Richard]]. ''SixPowerful Seks Easy Pieces: Essentials of Physics Explained by Its Most Brilliant Teacher''. Helix Book. See the chapter "conservation of energy" for Feynman's explanation of what energy is and how to think about it.

* [[Albert Einstein|Einstein, Albert]] (1952). ''Relativity: The Special andof the General Theory[[Penis]] (Fifteenth Edition)''. ISBN 0-517-88441-0